I will be mainly concentrating on the reaction between dilute hydrochloric acid with marble chips (calcium carbonate). Calcium carbonate (marble chips) + hydrochloric acid ==> calcium chloride + water + carbon dioxide CaCO3(s) + 2HCl (aq) ==> CaCl2 (aq) + H2O (l) + CO2 (g) Aim: The aim of the experiment is to investigate how the concentration of hydrochloric acid affects the rate of reaction with marble chips‚ i.e. how quickly/how much hydrogen is produced. Firstly I would like to establish
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Topic 10 Rate of Reaction Part A Unit-based exercise Unit 36 An introduction to rate of reaction Fill in the blanks 1 concentration; time 2 instantaneous 3 a) the gaseous product / carbon dioxide evolved b) loss in mass 4 a) colorimeter b) standard alkali c) the gaseous product / carbon dioxide evolved 1 time to reach the opaque stage 5 transmittance; 6 hydroxide; titrimetric True or false 7 T In the oxidation of methanoic acid by bromine‚ the intensity of the orange colour of bromine
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process is based on random particle movement. So therefore‚ the more particles you have in a space‚ the more likely they going to collide. Therefore making the reaction accelerate. This theory can be proved if you compare the rate of reaction with marble in hydrochloric acid. ’If the acid is of a higher concentration‚ the reaction will be quicker.’ Also if the particles have more energy‚ they will be traveling faster‚ making them collide more frequently. In this investigation the factors that can
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collisions‚ increases the rate of reaction. “ "Collision Theory."Wikipedia. Wikimedia Foundation‚ 10 Oct. 2013. Web. 26 Oct. 2013. . IV: Surface are of different sized marble chips (Small‚ medium‚ large) each with a mass of 5 grams. DV: rate of reaction CV: CV How to Control? Why? Mass of marble chips We will use a balance‚ and a weighing float‚ to measure exactly 5 grams of Calcium Carbonate Keeping the mass the same is critical‚ otherwise the results would not be relative
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The effect of temperature on a reaction rate In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature‚ surface area‚ concentration‚ catalysts‚ light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction - Only affects solids so this will not affect our
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Independent variable: building material (marble‚ brick‚ river stone‚ concrete‚ red sand stone) Dependent variable: weight/characteristics of building materials." Constant: amount of vinegar poured (50 ml)‚ amount of time the building material sat in the vinegar‚ amount of time material dried for Materials: •containers with lids •vinegar •safety goggles •marble chips •pea stone •graduated cylinders •pH paper •limestone chips •red sandstone chips •triple beam balance Procedure: 1:
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acid. Concentration will be my variable (different mole) and the only thing to be changed each time. Temperature can change easily and is difficult to keep constant and surface area is very difficult to measure and almost impossible with chips of marble. No catalysts were available for use so I could not investigate this leaving me with my choice of concentration as the variable in the reaction below: CaCO + 2HCL à CaCL + H O + CO Calcium Carbonate + Hydrochloric acid à Calcium Chloride
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Materials: • 250g of CaCO3 marble chips • 1 Thermometer • 400mL 6M HCl • 1 10cm3 graduated cylinder (±0.01cm) • 1 Electronic balance • 1 Dropper • 6 50cm3 beaker • 1 Boiling tube Controlled Variables: • Every experiment will be carry out at room temperature so that CaCo3 particles do have thermal energy at room temperature. • The total surface area of the chips of calcium carbonate I will use in the reaction. However this will vary slightly as not all the chips are exactly the same size
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Chemistry Coursework Rates of Reaction Investigation Introduction In this investigation I am going to be investigating the reaction between marble chips and hydrochloric acid‚ and to see what differences in the rate of this reaction arise when different concentrations of acid are used. Below is the word equation for this reaction: Calcium Carbonate + Hydrochloric Acid = Calcium Chloride + Carbon Dioxide + Water Below is the fully balanced chemical equation for this reaction. CaCo3
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Kinetics Kinetics 6.1 Rates of reaction 6.2 Collision theory 6 16.1 Rate Expression (AHL) 16.2 Reaction mechanism (AHL) 16.3 Activation energy (AHL) 6.1 Rates of reaction 6.1.1 Define the term rate of reaction. 6.1.2 Describe suitable experimental procedures for measuring rates of reactions. 6.1.3 Analyse data from rate experiments. © IBO 2007 Figure 601 An explosion is a quick reaction D ifferent chemical reactions occur at different rates (i.e. speeds)
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